Keycloak vs Tesseral

Keycloak significantly outpaces Tesseral in community adoption with 36,426 stars compared to 1,138 stars on GitHub. This 32.0x difference suggests Keycloak has a much larger and more active community. In terms of developer contributions, Keycloak has 8,852 forks, indicating strong developer engagement.

Keycloak is growing faster, adding 570 stars in the last 30 days (+1.6%) against adding 0 stars for Tesseral (0%). Keycloak is both larger and pulling further ahead.

Keycloak shows more recent development activity with its last commit 6 hours ago, while Tesseral was last updated 6 months ago. This suggests Keycloak is being more actively maintained.

Both tools share common technology foundations, being built with JavaScript, CSS, Typescript, JSX. However, they differ in their additional technology choices: Keycloak uses Bash, Python, C, Java while Tesseral leverages Golang.

Keycloak has been in development longer, starting 13 years ago, compared to Tesseral which began 2 years ago. This 11.5-year head start suggests Keycloak may have more mature features and established processes.

Tesseral uses the MIT license, which is more permissive than Keycloak's Apache-2.0 license, potentially offering greater flexibility for commercial use and integration.

Both tools serve similar use cases in Authentication & SSO. However, they also have distinct specializations: Keycloak also focuses on Authorization & Permissions.

Keycloak provides self-hosting options for complete data control and customization, while Tesseral may be primarily cloud-based or require different deployment approaches.